Depression

I am very prone to depression, I take mess, but when I get to that dark place I still have bad thoughts. I'm in love with this guy. He's perfect in every way. We dated for 4 days and he said he wasn't ready for a relationship. We've been best friends for almost a year, but I've known him for 3. I'm perfectly okay that he's not ready, but I told him I'd wait for him, he's worth it. In really not in a great place mentally